"Kima" <nomail@nomail> wrote:
> I wonder what shapes/objects can be used and manipulated to form a paintbrush on
> the canvas, something like
>
>
https://cdn.imgbin.com/18/11/4/imgbin-oil-paint-paintbrush-watercolor-painting-paint-purple-paint-sticker-GPeinj6dEyv
mi
> KYTwDs7AaiA9.jpg

When I was looking to do a quick & dirty "painted" effect, I used a bump normal
and just scaled it really big in one direction to stretch it.

I suppose you could actually make a bumpy object and create a loop to make a
sort of sphere sweep, and even vary the bumpiness to give the flexible bristle
effect.
Then just bury it under the surface so some sticks out, or difference away the
irrelevant part.

> In the same context, how do you create a spatial object like
>
>
https://encrypted-tbn0.gstatic.com/images?q=tbn%3AANd9GcTtlV3vfVdQRULRJrpWyoqVjDFi9Y2faXwYksCJ57Pr1i_qaVE4
>
> The reason I mentioned the latter is its similarity with julia_fractal. Perhaps,
> the way julia_fractal is created in POV-Ray can be employed to build the above
> images.

Play around here:

http://www.econym.demon.co.uk/isotut/splines.htm

and see what you like.

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